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Check Limit Switch (Driver Side)

  1. LIMIT SWITCH SIGNAL CHECK 
    1. Turn the ignition switch ON.
    2. Check voltage between front power window motor (driver side) connector and ground.
      LIMIT SWITCH SIGNAL CHECK

      Connector Terminals (Wire color) Condition Voltage (V) (Approx,)
      (+) (-)
      D7 5 (PU) Ground Driver side door window is between fully-open and just before fully-closed position (ON) 0
      Driver side door window is between just before fully closed position and fully closed position (OFF) 5
      Fig 1: Checking Voltage Between Front Power Window Motor (Driver Side) Connector And Ground
      G04129771Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    • OK: Limit switch (driver side) is OK.
    • NG: GO TO 2.
  2. LIMIT SWITCH GROUND CHECK 
    1. Turn ignition switch OFF.
    2. Disconnect front power window motor (driver side) connector.
    3. Check continuity between front power window motor (driver side) connector D7 terminal 6 and ground.
      Fig 2: Checking Continuity Between Front Power Window Motor (Driver Side) Connector Terminal 6 And Ground
      G04129772Courtesy of NISSAN MOTOR CO., U.S.A.

      6 (B) - Ground: Continuity should exist. 

    OK or NG 

    • OK: GO TO 3.
    • NG: Repair or replace harness.
  3. FRONT POWER WINDOW MOTOR (DRIVER SIDE) CIRCUIT CHECK 
    1. Disconnect driver door control unit (door LCU01) connector.
    2. Check continuity between power window motor (driver side) connector D7 terminal 5 and driver door control unit (LCU01) connector D8 terminal 7.
      Fig 3: Checking Continuity Between Power Window Motor And Driver Door Control Unit
      G04129773Courtesy of NISSAN MOTOR CO., U.S.A.

      5 (PU) - 7 (PU): Continuity should exist. 

    3. Check continuity between power window motor (driver side) connector D7 terminal 5 and ground.

      5 (PU) - Ground: Continuity should not exist. 

    OK or NG 

    • OK: GO TO 4.
    • NG: Repair or replace harness.
  4. DRIVER DOOR CONTROL UNIT OUTPUT SIGNAL CHECK 
    1. Connect driver door control unit (LCU01) connector.
    2. Turn ignition switch ON.
    3. Check voltage between front power window motor (driver side) connector D7 terminal 5 and ground.

      5 (PU) - Ground: Approx. 5V 

      Fig 4: Checking Voltage Between Front Power Window Motor (Driver Side) Connector D7 Terminal 5 And Ground
      G04129774Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    • OK: Check the condition of the harness and the connector.
    • NG: Replace driver door control unit (LCU01).
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